" Prove that the points "(a,b+c)" ,(bi "c+a)" and "(c,a+b)" are collinear."

Prove that the points (a, b + c), (b, c + a) and (c, a + b) are collinear.

Show that the points A(a,b+c), B(b,c+a) and C(c,a+b) are collinear.

Prove that the points (a,b+c),(b,c+a) and (c,a+b) are collinear.

Prove that the points (a, b + c), (b , c+a) and (c, a+b) are collinear and find the equation of the straight line containing them .

Prove that the points (a ,b+c),(b ,c+a)a n d(c ,a+b) are collinear.

Prove that the points (a ,b+c),(b ,c+a)a n d(c ,a+b) are collinear.

Show that the points (a,b+c),(b,c+a) and (c,a+b) are collinear.

Show that the points (a,b+c) (b,c+a) and (c,a+b) are collinear.

Using determinant show that the points (a,b+c),(b,c+a) and (c,a+b) are collinear.

Show that the point P(a, b + c), Q(b, c +a) and R(c, a + b) are collinear.